Core editing features
Edit PDF text
Edit existing PDF text inline and download the updated file locally.
Add text annotations
Place new text above the PDF without rewriting the original text layer.
Draw on PDFs
Use freehand ink for quick marks, review notes, and visual corrections.
Sign PDFs
Add a drawn signature and flatten it into the exported PDF.
Add images
Place logos, stamps, screenshots, or other images onto a page.
Split text fragments
Split badly detected text fragments manually when PDF text extraction is messy.
Document tools
OCR scanned PDFs
Run OCR on scanned PDFs directly in the browser.
Find and replace
Search and replace detected text across the document.
Redact PDFs
Draw true redaction boxes and export flattened redacted PDFs.
Auto redact
Search for a word or phrase and create redaction boxes over matches.
Merge PDFs
Append another PDF to the current document locally in the browser.
Reorder pages
Drag pages into a new order and apply the result locally.
Delete pages
Remove unwanted pages and apply the result locally.
Extract pages
Select pages and download them as a separate PDF.
Rotate pages
Rotate individual pages or selected pages, then apply the result locally.
Compress PDFs
Reduce PDF file size locally with browser-based compression.
Inspect PDFs
Review metadata, pages, fonts, images, form fields, and annotations.
Protect with password
Export a password-protected PDF without uploading it.
Private by design
CrabPDF runs entirely in your browser. No uploads, no backend, no account required. After the site has loaded, you can close your Wi-Fi connection and continue editing offline.
CrabPDF is experimental. Always verify important documents after editing or redaction.